21432022023412 has 192 divisors, whose sum is σ = 50638019604480. Its totient is φ = 7664983603200.

The previous prime is 21432022023329. The next prime is 21432022023421.

21432022023412 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21432022023412² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1095752889 + ... + 1095772447.

It is an arithmetic number, because the mean of its divisors is an integer number (263739685440).

Almost surely, 2^{21432022023412} is an apocalyptic number.

21432022023412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21432022023412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25319009802240).

21432022023412 is an abundant number, since it is smaller than the sum of its proper divisors (29205997581068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21432022023412 is a wasteful number, since it uses less digits than its factorization.

21432022023412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21102 (or 21100 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

It can be divided in two parts, 2143202 and 2023412, that added together give a palindrome (4166614).

The spelling of 21432022023412 in words is "twenty-one trillion, four hundred thirty-two billion, twenty-two million, twenty-three thousand, four hundred twelve".